AirHint found the following cheapest one-way flights from London (LHR) to Bilbao (BIO) in December 2025 (see full year).

One-Way flights

03 Dec	Vueling Airlines	direct
11 Dec	Vueling Airlines	direct
10 Dec	Vueling Airlines	direct
04 Dec	Vueling Airlines	direct
25 Dec	Vueling Airlines	direct
05 Dec	Vueling Airlines	direct
13 Dec	Vueling Airlines	direct
12 Dec	Vueling Airlines	direct
31 Dec	Vueling Airlines
28 Dec	Vueling Airlines

Also check the deals for return flights from London to Bilbao in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from London to Bilbao in December from $50

One-Way flights